d912308b25069fa085a7751a7959f5457a0165148b615ed2373ad1a907650500

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/05/2024, 04:26

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General

Target

2024-05-25_2c59774cab0501c39a065137351ea826_cryptolocker.exe
Size

30KB
MD5

2c59774cab0501c39a065137351ea826
SHA1

55a3ead86aa05a14d53d6fef931a9c2b13e104f4
SHA256

d912308b25069fa085a7751a7959f5457a0165148b615ed2373ad1a907650500
SHA512

c773a927239049d9988fa346ca56c6ddf7809e621589a10b737087c96dc771c501e9772edda2ea0a79612e14b7e8b17b6d027b8f356600e108c699520e1a557a
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGbNAKSjNf/3:o1KhxqwtdgI2MyzNORQtOflIwoHNV2X2

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012333-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012333-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3060	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2224	2024-05-25_2c59774cab0501c39a065137351ea826_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2224	2024-05-25_2c59774cab0501c39a065137351ea826_cryptolocker.exe
3060	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2224 wrote to memory of 3060	2224	2024-05-25_2c59774cab0501c39a065137351ea826_cryptolocker.exe	28
PID 2224 wrote to memory of 3060	2224	2024-05-25_2c59774cab0501c39a065137351ea826_cryptolocker.exe	28
PID 2224 wrote to memory of 3060	2224	2024-05-25_2c59774cab0501c39a065137351ea826_cryptolocker.exe	28
PID 2224 wrote to memory of 3060	2224	2024-05-25_2c59774cab0501c39a065137351ea826_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-25_2c59774cab0501c39a065137351ea826_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-25_2c59774cab0501c39a065137351ea826_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:3060

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
30KB

MD5
f9ee6d8af0df03f68d22d41bfc7e3b3d

SHA1
ebdb7b8911b75ffda52c07af79b811f70921b7ae

SHA256
bb85e5b6f8ff0ce22a0e67ce63f6406dfe102afc07977db2477a70937f8b9e1e

SHA512
0263880a2c53ab2c4ff3c5eb9bed4e6c9c2448db54343bc555a1c18d31b192aed8b30c1eaa30830d8f8439d5b73816546980862a4d32325f8e6a75540c7c390d

Download Submit
memory/2224-8-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2224-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2224-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/3060-23-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download